51
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Chowdhury R, Tegg L, Keast VJ, Holmes NP, Cooling NA, Vaughan B, Nicolaidis NC, Belcher WJ, Dastoor PC, Zhou X. Plasmonic enhancement of aqueous processed organic photovoltaics. RSC Adv 2021; 11:19000-19011. [PMID: 35478661 PMCID: PMC9033506 DOI: 10.1039/d1ra02328d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/19/2021] [Indexed: 11/21/2022] Open
Abstract
Sodium tungsten bronze (NaxWO3) is a promising alternative plasmonic material to nanoparticulate gold due to its strong plasmonic resonances in both the visible and near-infrared (NIR) regions. Additional benefits include its simple production either as a bulk or a nanoparticle material at a relatively low cost. In this work, plasmonic NaxWO3 nanoparticles were introduced and mixed into the nanoparticulate zinc oxide electron transport layer of a water processed poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester (P3HT:PC61BM) nanoparticle (NP) based organic photovoltaic device (NP-OPV). The power conversion efficiency of NP-OPV devices with NaxWO3 NPs added was found to improve by around 35% compared to the control devices, attributed to improved light absorption, resulting in an enhanced short circuit current and fill factor. Plasmonic NaxWO3 nanoparticles were introduced to aqueous processed organic photovoltaics with 35% device enhancement.![]()
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52
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El-Khoury PZ, Schultz ZD. From SERS to TERS and Beyond: Molecules as Probes of Nanoscopic Optical Fields. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:27267-27275. [PMID: 34306295 PMCID: PMC8297906 DOI: 10.1021/acs.jpcc.0c08337] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A detailed understanding of the interaction between molecules and plasmonic nanostructures is important for several exciting developments in (bio)molecular sensing and imaging, catalysis, as well as energy conversion. While much of the focus has been on the nanostructures that generate enhanced and nano-confined optical fields, we herein highlight recent work from our groups that uses the molecular response in surface and tip enhanced Raman scattering (SERS and TERS, respectively) to investigate different aspects of the local fields. TERS provides access to ultra-confined volumes, and as a result can further explore and explain ensemble-averaged SERS measurements. Exciting and distinct molecular behaviors are observed in the quantum limit of plasmons, including molecular charging, chemical conversion, and optical rectification. Evidence of multipolar Raman scattering from molecules additionally provides insights into the inhomogeneous electric fields that drive SERS and TERS and their spatial and temporal gradients. The time scales of these processes show evidence of cooperative nanoscale phenomena that altogether contribute to SERS and TERS.
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Affiliation(s)
- Patrick Z El-Khoury
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA
| | - Zachary D Schultz
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
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53
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Atop adsorption of oxygen on small sized gold clusters: Analysis of size and site reactivity from restructuring perspective. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.113014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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54
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Dubey A, Mishra R, Hsieh Y, Cheng C, Wu B, Chen L, Gwo S, Yen T. Aluminum Plasmonics Enriched Ultraviolet GaN Photodetector with Ultrahigh Responsivity, Detectivity, and Broad Bandwidth. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2002274. [PMID: 33344129 PMCID: PMC7740085 DOI: 10.1002/advs.202002274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/17/2020] [Indexed: 05/30/2023]
Abstract
Plasmonics have been well investigated on photodetectors, particularly in IR and visible regimes. However, for a wide range of ultraviolet (UV) applications, plasmonics remain unavailable mainly because of the constrained optical properties of applicable plasmonic materials in the UV regime. Therefore, an epitaxial single-crystalline aluminum (Al) film, an abundant metal with high plasma frequency and low intrinsic loss is fabricated, on a wide bandgap semiconductive gallium nitride (GaN) to form a UV photodetector. By deliberately designing a periodic nanohole array in this Al film, localized surface plasmon resonance and extraordinary transmission are enabled; hence, the maximum responsivity (670 A W-1) and highest detectivity (1.48 × 1015 cm Hz1/2 W-1) is obtained at the resonance wavelength of 355 nm. In addition, owing to coupling among nanoholes, the bandwidth expands substantially, encompassing the entire UV range. Finally, a Schottky contact is formed between the single-crystalline Al nanohole array and the GaN substrate, resulting in a fast temporal response with a rise time of 51 ms and a fall time of 197 ms. To the best knowledge, the presented detectivity is the highest compared with those of other reported GaN photodetectors.
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Affiliation(s)
- Abhishek Dubey
- Department of Materials Science and EngineeringNational Tsing Hua UniversityHsinchu300Taiwan
| | - Ragini Mishra
- Institute of NanoEngineering and MicroSystemsNational Tsing Hua UniversityHsinchu300Taiwan
| | - Yu‐Hung Hsieh
- Institute of NanoEngineering and MicroSystemsNational Tsing Hua UniversityHsinchu300Taiwan
- Research Centre for Applied ScienceAcademia SinicaTaipei115‐29Taiwan
| | - Chang‐Wei Cheng
- Department of PhysicsNational Tsing Hua UniversityHsinchu300Taiwan
| | - Bao‐Hsien Wu
- Department of Materials Science and EngineeringNational Tsing Hua UniversityHsinchu300Taiwan
| | - Lih‐Juann Chen
- Department of Materials Science and EngineeringNational Tsing Hua UniversityHsinchu300Taiwan
| | - Shangjr Gwo
- Institute of NanoEngineering and MicroSystemsNational Tsing Hua UniversityHsinchu300Taiwan
- Research Centre for Applied ScienceAcademia SinicaTaipei115‐29Taiwan
- Department of PhysicsNational Tsing Hua UniversityHsinchu300Taiwan
| | - Ta‐Jen Yen
- Department of Materials Science and EngineeringNational Tsing Hua UniversityHsinchu300Taiwan
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55
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Tran VT, Nguyen HQ, Kim YM, Ok G, Lee J. Photonic-Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2248. [PMID: 33198391 PMCID: PMC7696832 DOI: 10.3390/nano10112248] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/07/2020] [Accepted: 11/11/2020] [Indexed: 11/16/2022]
Abstract
Issues related to global energy and environment as well as health crisis are currently some of the greatest challenges faced by humanity, which compel us to develop new pollution-free and sustainable energy sources, as well as next-generation biodiagnostic solutions. Optical functional nanostructures that manipulate and confine light on a nanometer scale have recently emerged as leading candidates for a wide range of applications in solar energy conversion and biosensing. In this review, recent research progress in the development of photonic and plasmonic nanostructures for various applications in solar energy conversion, such as photovoltaics, photothermal conversion, and photocatalysis, is highlighted. Furthermore, the combination of photonic and plasmonic nanostructures for developing high-efficiency solar energy conversion systems is explored and discussed. We also discuss recent applications of photonic-plasmonic-based biosensors in the rapid management of infectious diseases at point-of-care as well as terahertz biosensing and imaging for improving global health. Finally, we discuss the current challenges and future prospects associated with the existing solar energy conversion and biosensing systems.
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Affiliation(s)
- Van Tan Tran
- Department of Chemistry, Research Institute of Materials Science, Chungnam National University, Daejeon 34134, Korea; (V.T.T.); (H.-Q.N.)
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
| | - Huu-Quang Nguyen
- Department of Chemistry, Research Institute of Materials Science, Chungnam National University, Daejeon 34134, Korea; (V.T.T.); (H.-Q.N.)
| | - Young-Mi Kim
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea;
| | - Gyeongsik Ok
- Research Group of Consumer Safety, Korea Food Research Institute (KFRI), Wanju 55365, Korea;
| | - Jaebeom Lee
- Department of Chemistry, Research Institute of Materials Science, Chungnam National University, Daejeon 34134, Korea; (V.T.T.); (H.-Q.N.)
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea;
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56
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Zhao DW, Yu MY, Zheng LL, Li M, Dai SJ, Chen DC, Lee TC, Yun DQ. Enhanced Efficiency and Stability of Planar Perovskite Solar Cells Using a Dual Electron Transport Layer of Gold Nanoparticles Embedded in Anatase TiO 2 Films. ACS APPLIED ENERGY MATERIALS 2020; 3:9568-9575. [PMID: 33134879 PMCID: PMC7592386 DOI: 10.1021/acsaem.0c00276] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 09/14/2020] [Indexed: 05/06/2023]
Abstract
Incorporating plasmonic nanostructures is a promising strategy to enhance both the optical and electrical characteristics of photovoltaic devices via more efficient harvesting of incident light. Herein, we report a facile fabrication scheme at low temperature for producing gold nanoparticles embedded in anatase TiO2 films, which can simultaneously improve the efficiency and stability of n-i-p planar heterojunction perovskite solar cells (PSCs). The PSCs based on rigid and flexible substrates with 0.2 wt % Au-TiO2/TiO2 dual electron transport layers (ETLs) achieved power conversion efficiencies up to 20.31 and 15.36%, superior to that of devices with TiO2 as a single ETL. Moreover, 0.2 wt % Au-TiO2/TiO2 devices demonstrated significant stability in light soaking, which is attributed to improved light absorption, low charge recombination loss, and enhanced carrier transport, and extraction with the plasmonic Au-TiO2/TiO2 dual ETL. The present work improves the practicability of high-performance and flexible PSCs by engineering the photogenerated carrier dynamics at the interface.
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Affiliation(s)
- Da-Wei Zhao
- College
of Energy, Xiamen University, Xiamen 361005, China
| | - Ming-Yu Yu
- College
of Energy, Xiamen University, Xiamen 361005, China
| | | | - Ming Li
- College
of Energy, Xiamen University, Xiamen 361005, China
| | - Shi-Jie Dai
- College
of Energy, Xiamen University, Xiamen 361005, China
| | - Di-Chun Chen
- Xiamen
Branch of Luoyang Ship Material Research Institute, Xiamen 361006, China
| | - Tung-Chun Lee
- Department
of Chemistry and Institute for Materials Discovery, University College London (UCL), London WC1H 0AJ, U.K.
| | - Da-Qin Yun
- College
of Energy, Xiamen University, Xiamen 361005, China
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57
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Samani MT, Hashemianzadeh SM. The effect of functionalization on solubility and plasmonic features of gold nanoparticles. J Mol Graph Model 2020; 101:107749. [PMID: 32966917 DOI: 10.1016/j.jmgm.2020.107749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/01/2020] [Accepted: 09/06/2020] [Indexed: 11/26/2022]
Abstract
Effect of functionalization on stability, solubility, and plasmonic features of gold nanoparticle with the general formula of Au18(SR)14 in water solvent has been studied in this work. Thiol functional groups including 1,1-mercapto-ethyl alcohol, s-cysteamine, thioglycolic acid, and beta-mercaptoethanol have been used. Electronic band-gap, excitation energies, dipole moment, and hardness for all gold nanoparticles in water solvent were investigated using the quantum mechanical approach. Intermolecular forces, radial distribution function (RDF), mean square displacement (MSD), and solvation free energy were calculated by using simulation methods. Electronic band-gap, and excitation energy analysis show that surface modification of gold nanoparticles can change their electronic and plasmonic properties. The analysis of dipole moments indicates that ligands affect the nanoparticle's solubility. An increase of hardness and therefore chemical stability can be observed for functionalized nanoparticles compared to the bare structure. Intermolecular energies analyses suggest that structure with 1,1-mercapto ethyl alcohol ligand has the strongest interaction with the solvent. The analysis of RDF diagrams also indicates that the molecule with 1,1-mercapto ethyl alcohol ligand has the sharpest pick. The slope of the linear part of MSD diagrams that is the criterion of solute's lateral diffusion is the highest value for nanoparticle with 1,1-mercapto ethyl alcohol ligand. Furthermore, functionalization also affects solvation free energy contributions. According to obtained data of quantum mechanical calculations and molecular dynamics simulations, it may be concluded that particle with 1,1-mercapto ethyl alcohol is the best ligand for increasing solubility, stability, and plasmonic functions of Au18(SR)14 structures among the examined ones.
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Affiliation(s)
- Mandana Tarakame Samani
- Molecular Simulation Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
| | - Seyed Majid Hashemianzadeh
- Molecular Simulation Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran.
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58
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Synergetic Effect of Plasmonic Gold Nanorods and MgO for Perovskite Solar Cells. NANOMATERIALS 2020; 10:nano10091830. [PMID: 32937784 PMCID: PMC7557864 DOI: 10.3390/nano10091830] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 11/18/2022]
Abstract
We report new structured perovskite solar cells (PSCs) using solution-processed TiO2/Au nanorods/MgO composite electron transport layers (ETLs). The proposed method is facile, convenient, and effective. Briefly, Au nanorods (NRs) were prepared and introduced into mesoporous TiO2 ETLs. Then, thin MgO overlayers were grown on the Au NRs modified ETLs by wet spinning and pyrolysis of the magnesium salt. By simultaneous use of Au NRs and MgO, the power conversion efficiency of the PSC device increases from 14.7% to 17.4%, displaying over 18.3% enhancement, compared with the reference device without modification. Due to longitudinal plasmon resonances (LPRs) of gold nanorods, the embedded Au NRs exhibit the ability to significantly enhance the near-field and far-field (plasmonic scattering), increase the optical path length of incident photons in the device, and as a consequence, notably improve external quantum efficiency (EQE) at wavelengths above 600 nm and power conversion efficiency (PCE) of PSC solar cells. Meanwhile, the thin MgO overlayer also contributes to enhanced performance by reducing charge recombination in the solar cell. Theoretical calculations were carried out to elucidate the PV performance enhancement mechanisms.
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59
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Tegg L, Keast VJ. Na xWO 3 + TiO 2 nanocomposites as plasmonic photocatalysts for the degradation of organic dyes. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/aba131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
The combination of plasmonic metal nanostructures with semiconductor photocatalysts can improve their photocatalytic efficiency by increasing light absorption and aiding in charge separation. Metallic Na
x
WO3 has been shown to be strongly plasmonic and offers a readily synthesized and low-cost replacement for the noble metals which are conventionally used in plasmonic photocatalysts. In this work, a range of Na
x
WO3 + TiO2 nanocomposites were fabricated. Composites containing both semiconducting (x < 0.25) and metallic (x > 0.25) Na
x
WO3 were prepared. The degradation of rhodamine 6G (R6G) under visible and near infrared (NIR) light illumination was observed only when Na
x
WO3 and TiO2 were both present in the composite. Photocatalytic activity was generally higher in metallic samples than in semiconducting ones, but the sample with the highest activity had a mixture of both. This suggests that a combination of interband transitions and plasmonics-enhanced processes can be used together to catalyse reactions.
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60
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Vu NN, Kaliaguine S, Do TO. Plasmonic Photocatalysts for Sunlight-Driven Reduction of CO 2 : Details, Developments, and Perspectives. CHEMSUSCHEM 2020; 13:3967-3991. [PMID: 32476290 DOI: 10.1002/cssc.202000905] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/27/2020] [Indexed: 06/11/2023]
Abstract
Plasmonic photocatalysis is among the most efficient processes for the photoreduction of CO2 into valuable fuels. The formation of localized surface plasmon resonance (LSPR), energy transfer, and surface reaction are the significant steps in this process. LSPR plays an essential role in the performance of plasmonic photocatalysts as it promotes an excellent, light absorption over a broad wavelength range while simultaneously facilitating an efficient energy transfer to semiconductors. The LSPR transfers energy to a semiconductor through various mechanisms, which have both advantages and disadvantages. This work points out four critical features for plasmonic photocatalyst design, that is, plasmonic materials, size, shape of plasmonic nanoparticles (PNPs), and the contact between PNPs and semiconductor. Various developed plasmonic photocatalysts, as well as their photocatalytic performance in CO2 photoreduction, are reviewed and discussed. Finally, perspectives of advanced architectures and structural engineering for plasmonic photocatalyst design are put forward with high expectations to achieve an efficient CO2 photoreduction shortly.
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Affiliation(s)
- Nhu-Nang Vu
- Department of Chemical Engineering, Laval University, 1065 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Serge Kaliaguine
- Department of Chemical Engineering, Laval University, 1065 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Trong-On Do
- Department of Chemical Engineering, Laval University, 1065 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
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61
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Dong WJ, Yu HK, Lee JL. Abnormal dewetting of Ag layer on three-dimensional ITO branches to form spatial plasmonic nanoparticles for organic solar cells. Sci Rep 2020; 10:12819. [PMID: 32733037 PMCID: PMC7393491 DOI: 10.1038/s41598-020-69320-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 05/12/2020] [Indexed: 11/09/2022] Open
Abstract
Three-dimensional (3D) plasmonic structures have attracted great attention because abnormal wetting behavior of plasmonic nanoparticles (NPs) on 3D nanostructure can enhance the localized surface plasmons (LSPs). However, previous 3D plasmonic nanostructures inherently had weak plasmonic light absorption, low electrical conductivity, and optical transmittance. Here, we fabricated a novel 3D plasmonic nanostructure composed of Ag NPs as the metal for strong LSPs and 3D nano-branched indium tin oxide (ITO BRs) as a transparent and conductive framework. The Ag NPs formed on the ITO BRs have a more dewetted behavior than those formed on the ITO films. We experimentally investigated the reasons for the dewetting behavior of Ag NPs concerning the geometry of ITO BRs. The spherical Ag NPs are spatially separated and have high density, thereby resulting in strong LSPs. Finite-domain time-difference simulation evidenced that spatially-separated, high-density and spherical Ag NPs formed on ITO BRs dramatically boost the localized electric field in the active layer of organic solar cells (OSCs). Photocurrent of PTB7:PCBM OSCs with the ITO BRs/Ag NPs increased by 14%.
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Affiliation(s)
- Wan Jae Dong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea
| | - Hak Ki Yu
- Department of Materials Science and Engineering and Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
| | - Jong-Lam Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea.
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62
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Phetsang S, Nootchanat S, Lertvachirapaiboon C, Ishikawa R, Shinbo K, Kato K, Mungkornasawakul P, Ounnunkad K, Baba A. Enhancement of organic solar cell performance by incorporating gold quantum dots (AuQDs) on a plasmonic grating. NANOSCALE ADVANCES 2020; 2:2950-2957. [PMID: 36132386 PMCID: PMC9419240 DOI: 10.1039/d0na00169d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/07/2020] [Indexed: 06/12/2023]
Abstract
The incorporation of metallic nanoobjects into devices allows to increase light harvesting, which increases the device performance. In this study, we used a combination of gold quantum dots and grating-coupled surface plasmon resonance (GCSPR) to improve the performance of organic solar cells (OSCs) with a poly(3-hexylthiophene-2,5-diyl) (P3HT):[6,6]-phenyl C61 butyric acid methyl ester (PCBM) photoactive layer. Gold quantum dots with a green fluorescent color (green-AuQD) were loaded into a hole transport layer (HTL) aiming to harvest photons in the UV region and emit visible light into the neighboring photoactive layer. Meanwhile, plasmonic grating structures, which were created on the photoactive layer surfaces via the nanoimprinting technique, provided an enhancement effect through light scattering and GCSPR. Thus, an excellent enhancement of OSC efficiency with a significant increase in short circuit photocurrent (J SC) and power conversion efficiency (PCE) in comparison to that of the reference cell was achieved. The fabricated device provides a J SC value as high as 8.41 mA cm-2 (a 14.11% enhancement) and a PCE value of 3.91% (a 19.57% enhancement). The systematic study clearly reveals that the remarkable enhancement of OSC efficiency is achieved by incorporating both AuQD and plasmonic grating.
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Affiliation(s)
- Sopit Phetsang
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University Chiang Mai 50200 Thailand
| | - Supeera Nootchanat
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Chutiparn Lertvachirapaiboon
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Ryousuke Ishikawa
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Kazunari Shinbo
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Keizo Kato
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Pitchaya Mungkornasawakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University Chiang Mai 50200 Thailand
| | - Kontad Ounnunkad
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University Chiang Mai 50200 Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Center of Excellence in Materials Science and Technology, Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University Chiang Mai 50200 Thailand
| | - Akira Baba
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
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63
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Lenyk B, Schöps V, Boneberg J, Kabdulov M, Huhn T, Scheer E, Offenhäusser A, Mayer D. Surface Plasmon-Enhanced Switching Kinetics of Molecular Photochromic Films on Gold Nanohole Arrays. NANO LETTERS 2020; 20:5243-5250. [PMID: 32520573 DOI: 10.1021/acs.nanolett.0c01569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Diarylethene molecules are discussed as possible optical switches, which can reversibly transition between completely conjugated (closed) and nonconjugated (open) forms with different electrical conductance and optical absorbance, by exposure to UV and visible light. However, in general the opening reaction exhibits much lower quantum yield than the closing process, hindering their usage in optoelectronic devices. To enhance the opening process, which is supported by visible light, we employ the plasmonic field enhancement of gold films perforated with nanoholes. We show that gold nanohole arrays reveal strong optical transmission in the visible range (∼60%) and pronounced enhancement of field intensities, resulting in around 50% faster switching kinetics of the molecular species in comparison with quartz substrates. The experimental UV-vis measurements are verified with finite-difference time-domain simulation that confirm the obtained results. Thus, we propose gold nanohole arrays as transparent and conductive plasmonic material that accelerates visible-light-triggered chemical reactions including molecular switching.
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Affiliation(s)
- Bohdan Lenyk
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich, 52428 Jülich, Germany
- Department of Physics, University of Konstanz, 78457 Konstanz, Germany
| | - Volker Schöps
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich, 52428 Jülich, Germany
- Department of Physics, University of Konstanz, 78457 Konstanz, Germany
| | - Johannes Boneberg
- Department of Physics, University of Konstanz, 78457 Konstanz, Germany
| | - Mikhail Kabdulov
- Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| | - Thomas Huhn
- Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| | - Elke Scheer
- Department of Physics, University of Konstanz, 78457 Konstanz, Germany
| | - Andreas Offenhäusser
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich, 52428 Jülich, Germany
| | - Dirk Mayer
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich, 52428 Jülich, Germany
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64
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Tang H, Chen CJ, Huang Z, Bright J, Meng G, Liu RS, Wu N. Plasmonic hot electrons for sensing, photodetection, and solar energy applications: A perspective. J Chem Phys 2020; 152:220901. [PMID: 32534522 DOI: 10.1063/5.0005334] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In plasmonic metals, surface plasmon resonance decays and generates hot electrons and hot holes through non-radiative Landau damping. These hot carriers are highly energetic, which can be modulated by the plasmonic material, size, shape, and surrounding dielectric medium. A plasmonic metal nanostructure, which can absorb incident light in an extended spectral range and transfer the absorbed light energy to adjacent molecules or semiconductors, functions as a "plasmonic photosensitizer." This article deals with the generation, emission, transfer, and energetics of plasmonic hot carriers. It also describes the mechanisms of hot electron transfer from the plasmonic metal to the surface adsorbates or to the adjacent semiconductors. In addition, this article highlights the applications of plasmonic hot electrons in photodetectors, photocatalysts, photoelectrochemical cells, photovoltaics, biosensors, and chemical sensors. It discusses the applications and the design principles of plasmonic materials and devices.
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Affiliation(s)
- Haibin Tang
- Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, People's Republic of China
| | - Chih-Jung Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Zhulin Huang
- Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, People's Republic of China
| | - Joeseph Bright
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506-6106, USA
| | - Guowen Meng
- Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, People's Republic of China
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Nianqiang Wu
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003-9303, USA
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Zhou D, Li X, Zhou Q, Zhu H. Infrared driven hot electron generation and transfer from non-noble metal plasmonic nanocrystals. Nat Commun 2020; 11:2944. [PMID: 32522995 PMCID: PMC7287091 DOI: 10.1038/s41467-020-16833-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 05/28/2020] [Indexed: 11/26/2022] Open
Abstract
Non-noble metal plasmonic materials, e.g. doped semiconductor nanocrystals, compared to their noble metal counterparts, have shown unique advantages, including broadly tunable plasmon frequency (from visible to infrared) and rich surface chemistry. However, the fate and harvesting of hot electrons from these non-noble metal plasmons have been much less explored. Here we report plasmon driven hot electron generation and transfer from plasmonic metal oxide nanocrystals to surface adsorbed molecules by ultrafast transient absorption spectroscopy. We show unambiguously that under infrared light excitation, hot electron transfers in ultrafast timescale (<50 fs) with an efficiency of 1.4%. The excitation wavelength and fluence dependent study indicates that hot electron transfers right after Landau damping before electron thermalization. We revealed the efficiency-limiting factors and provided improvement strategies. This study paves the way for designing efficient infrared light absorption and photochemical conversion applications based on non-noble metal plasmonic materials.
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Affiliation(s)
- Dongming Zhou
- The Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Xufeng Li
- The Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Qiaohui Zhou
- The Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Haiming Zhu
- The Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China.
- State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, Zhejiang, 310027, China.
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66
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Wang B, Zou Y, Lu H, Kong W, Singh SC, Zhao C, Yao C, Xing J, Zheng X, Yu Z, Tong C, Xin W, Yu W, Zhao B, Guo C. Boosting Perovskite Photodetector Performance in NIR Using Plasmonic Bowtie Nanoantenna Arrays. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001417. [PMID: 32407005 DOI: 10.1002/smll.202001417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/09/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Triple-cation mixed metal halide perovskites are important optoelectronic materials due to their high photon to electron conversion efficiency, low exciton binding energy, and good thermal stability. However, the perovskites have low photon to electron conversion efficiency in near-infrared (NIR) due to their weak intrinsic absorption at longer wavelength, especially near the band edge and over the bandgap wavelength. A plasmonic functionalized perovskite photodetector (PD) is designed and fabricated in this study, in which the perovskite ((Cs0.06 FA0.79 MA0.15 )Pb(I0.85 Br0.15 )3 ) active materials are spin-coated on the surface of Au bowtie nanoantenna (BNA) arrays substrate. Under 785 nm laser illumination, near the bandedge of perovskite, the fabricated BNA-based plasmonic PD exhibits ≈2962% enhancement in the photoresponse over the Si/SiO2 -based normal PD. Moreover, the detectivity of the plasmonic PD has a value of 1.5 × 1012 with external quantum efficiency as high as 188.8%, more than 30 times over the normal PD. The strong boosting in the plasmonic PD performance is attributed to the enhanced electric field around BNA arrays through the coupling of localized surface plasmon resonance. The demonstrated BNA-perovskite design can also be used to enhance performance of other optoelectronic devices, and the concept can be extended to other spectral regions with different active materials.
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Affiliation(s)
- Bin Wang
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuting Zou
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Huanyu Lu
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
| | - Wenchi Kong
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Subhash C Singh
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- The Institute of Optics, University of Rochester, Rochester, NY, 14627, USA
| | - Chen Zhao
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chaonan Yao
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jun Xing
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xin Zheng
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhi Yu
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
| | - Cunzhu Tong
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
| | - Wei Xin
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
| | - Weili Yu
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
| | - Bo Zhao
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
| | - Chunlei Guo
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P. R. China
- The Institute of Optics, University of Rochester, Rochester, NY, 14627, USA
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Lin CC, Lin DX, Lin SH. Degradation problem in silver nanowire transparent electrodes caused by ultraviolet exposure. NANOTECHNOLOGY 2020; 31:215705. [PMID: 32015222 DOI: 10.1088/1361-6528/ab724f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Silver nanowire (AgNW) transparent electrode inevitably encounters ultraviolet (UV) irradiation from the environment, leading to stability and durability problems when in operation. Since UVA is the most abundant UV band and highly penetrating to AgNW related optoelectrical devices, it is crucial to understand the UVA damage caused to AgNWs. In this study, transparent electrodes composed of pristine AgNWs and glass substrates were manufactured with optimized processing parameters, and then used as model samples for aging tests. UVA exposure was conducted at elevated temperatures including 45 °C, 60 °C and 75 °C at 12 ± 5.5% relative humidity (RH) conditions. Comparative aging tests using conditions of damp heat (85 °C/85% RH) and 105 °C without UV (dark conditions) were also conducted. The relationship between optoelectrical property degradation, morphological changes and photo-corrosion was discussed. Under UVA exposure, the sheet resistance of electrodes increased gradually in an induction period before an abrupt change occurred. A nominal sheet resistance value of 200 Ω/sq was considered as a predestined failure of electrical property. It took 16, 24 and 60 h for UVA exposure at 75 °C, 60 °C and 45 °C, respectively, and 288 h by damp heat aging to degrade to the same status of predestined failure. Aging results of dark conditions indicated no degradation effect on AgNWs for 126 d aging. Moisture caused a different mechanism in damaging the capping agents on AgNWs. Nanocubes of silver chloride and sodium chloride were prone to precipitate at higher aging temperature such as 75 °C with UVA exposure. Sulfidation accounted for deterioration of optical transmittance, and occurred significantly at 45 °C with UVA irradiation and under damp heat conditions. The synergistic aging effect of UVA irradiance at elevated temperature on AgNW degradation has been unambiguously demonstrated. The results of this study provide guidelines for the design of optoelectronic devices when utilizing AgNW transparent electrodes.
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Affiliation(s)
- Chiao-Chi Lin
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan
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Controlled Synthesis of Au Nanocrystals-Metal Selenide Hybrid Nanostructures toward Plasmon-Enhanced Photoelectrochemical Energy Conversion. NANOMATERIALS 2020; 10:nano10030564. [PMID: 32245031 PMCID: PMC7153708 DOI: 10.3390/nano10030564] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/16/2020] [Accepted: 03/16/2020] [Indexed: 01/03/2023]
Abstract
A simple method for the controllable synthesis of Au nanocrystals–metal selenide hybrid nanostructures via amino acid guiding strategy is proposed. The results show that the symmetric overgrowth mode of PbSe shells on Au nanorods can be precisely manipulated by only adjusting the initial concentration of Pb2+. The shape of Au–PbSe hybrids can evolve from dumbbell-like to yolk-shell. Interestingly, the plasmonic absorption enhancement could be tuned by the symmetry of these hybrid nanostructures. This provides an effective pathway for maneuvering plasmon-induced energy transfer in metal–semiconductor hybrids. In addition, the photoactivities of Au–PbSe nanorods sensitized TiO2 electrodes have been further evaluated. Owing to the synergism between effective plasmonic enhancement effect and efficient interfacial charge transfer in these hybrid nanostructures, the Au–PbSe yolk-shell nanorods exhibit an outstanding photocurrent activity. Their photocurrent density is 4.38 times larger than that of Au–PbSe dumbbell-like nanorods under light irradiation at λ > 600 nm. As a versatile method, the proposed strategy can also be employed to synthesize other metal–selenide hybrid nanostructures (such as Au–CdSe, Au–Bi2Se3 and Au–CuSe).
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69
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Volokh M, Mokari T. Metal/semiconductor interfaces in nanoscale objects: synthesis, emerging properties and applications of hybrid nanostructures. NANOSCALE ADVANCES 2020; 2:930-961. [PMID: 36133041 PMCID: PMC9418511 DOI: 10.1039/c9na00729f] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/04/2020] [Indexed: 05/11/2023]
Abstract
Hybrid nanostructures, composed of multi-component crystals of various shapes, sizes and compositions are much sought-after functional materials. Pairing the ability to tune each material separately and controllably combine two (or more) domains with defined spatial orientation results in new properties. In this review, we discuss the various synthetic mechanisms for the formation of hybrid nanostructures of various complexities containing at least one metal/semiconductor interface, with a focus on colloidal chemistry. Different synthetic approaches, alongside the underlying kinetic and thermodynamic principles are discussed, and future advancement prospects are evaluated. Furthermore, the proved unique properties are reviewed with emphasis on the connection between the synthetic method and the resulting physical, chemical and optical properties with applications in fields such as photocatalysis.
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Affiliation(s)
- Michael Volokh
- Department of Chemistry, Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Taleb Mokari
- Department of Chemistry, Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
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70
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Recent Advances in TiO 2-Based Photocatalysts for Reduction of CO 2 to Fuels. NANOMATERIALS 2020; 10:nano10020337. [PMID: 32079215 PMCID: PMC7075154 DOI: 10.3390/nano10020337] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/02/2020] [Accepted: 01/08/2020] [Indexed: 11/21/2022]
Abstract
Titanium dioxide (TiO2) has attracted increasing attention as a candidate for the photocatalytic reduction of carbon dioxide (CO2) to convert anthropogenic CO2 gas into fuels combined with storage of intermittent and renewable solar energy in forms of chemical bonds for closing the carbon cycle. However, pristine TiO2 possesses a large band gap (3.2 eV), fast recombination of electrons and holes, and low selectivity for the photoreduction of CO2. Recently, considerable progress has been made in the improvement of the performance of TiO2 photocatalysts for CO2 reduction. In this review, we first discuss the fundamentals of and challenges in CO2 photoreduction on TiO2-based catalysts. Next, the recently emerging progress and advances in TiO2 nanostructured and hybrid materials for overcoming the mentioned obstacles to achieve high light-harvesting capability, improved adsorption and activation of CO2, excellent photocatalytic activity, the ability to impede the recombination of electrons-holes pairs, and efficient suppression of hydrogen evolution are discussed. In addition, approaches and strategies for improvements in TiO2-based photocatalysts and their working mechanisms are thoroughly summarized and analyzed. Lastly, the current challenges and prospects of CO2 photocatalytic reactions on TiO2-based catalysts are also presented.
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71
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Shaheen BS, El-Zohry AM, Zhao J, Yin J, Hedhili MN, Bakr OM, Mohammed OF. Real-Space Mapping of Surface-Oxygen Defect States in Photovoltaic Materials Using Low-Voltage Scanning Ultrafast Electron Microscopy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7760-7767. [PMID: 31951364 DOI: 10.1021/acsami.9b20215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ultrathin layers of native oxides on the surface of photovoltaic materials may act as very efficient carrier trapping/recombination centers, thus significantly affecting their interfacial photophysical properties. How ultrathin oxide layers affect the surface and interface carrier dynamics cannot be selectively accessed by conventional ultrafast transient spectroscopic methods due to the deep penetration depth (tens to thousands of nanometers) of the pump/probe laser pulses. Herein, scanning ultrafast electron microscopy (S-UEM) at a low voltage of 1 keV electrons was recently developed at KAUST to selectively map the ultrafast charge carrier dynamics of a few layers on the top surfaces of photovoltaic materials. Unlike high-voltage 30 keV experiments, at 1 keV, the depth of detected secondary electrons (SEs) underneath the surface is significantly reduced 5 times, thus making it possible to visualize the dynamics of charge carrier from the uppermost surface of photoactive layers. More specifically, this new approach has been employed to explore and decipher the tremendous impact of native oxide layers and oxygen defect states on charge carrier dynamics in space and time simultaneously at sub-nanometer levels on several photovoltaic material surfaces, including Si, GaAs, CdTe, and CdZnTe single crystals. Interestingly, the contrast in the SEs time-resolved difference images switched from a dark "energy-loss mechanism" to a bright "energy-gain mechanism" only by removing the layers of surface oxides. Moreover, the charge carrier recombination was estimated and found to be dramatically affected by the native oxide layers. The density functional theory (DFT) calculations demonstrate that the work function of oxygen-terminated Si surface also increases slightly upon optical excitation and makes for less SE intensity, providing another piece of evidence that the origin of the dark contrast observed on these material surfaces should be assigned to the surface oxide formation, mainly oxygen defect states in the band gap and/or work function increment. Our findings provide a new method and pave the way for evaluating the effect of surface morphology and defects, including but not limited to native oxide, on charge carrier dynamics, and interfacial properties of photovoltaic absorber layers.
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Affiliation(s)
- Basamat S Shaheen
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Ahmed M El-Zohry
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Jianfeng Zhao
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Jun Yin
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Mohamed N Hedhili
- Core Labs , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Osman M Bakr
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Omar F Mohammed
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
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Sun Q, Klaseboer E, Yuffa AJ, Chan DYC. Field-only surface integral equations: scattering from a perfect electric conductor. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2020; 37:276-283. [PMID: 32118908 PMCID: PMC7259374 DOI: 10.1364/josaa.378665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
A field-only boundary integral formulation of electromagnetics is derived without the use of surface currents that appear in the Stratton-Chu formulation. For scattering by a perfect electrical conductor (PEC), the components of the electric field are obtained directly from surface integral equation solutions of three scalar Helmholtz equations for the field components. The divergence-free condition is enforced via a boundary condition on the normal component of the field and its normal derivative. Field values and their normal derivatives at the surface of the PEC are obtained directly from surface integral equations that do not contain divergent kernels. Consequently, high-order elements with fewer degrees of freedom can be used to represent surface features to a higher precision than the traditional planar elements. This theoretical framework is illustrated with numerical examples that provide further physical insight into the role of the surface curvature in scattering problems.
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Affiliation(s)
- Qiang Sun
- Centre of Excellence for Nanoscale BioPhotonics, RMIT University, Melbourne, VIC 3001, Australia
- Department of Chemical Engineering, The University of Melbourne, Parkville 3010, VIC, Australia
| | - Evert Klaseboer
- Institute of High Performance Computing, 1 Fusionopolis Way, Singapore 138632, Singapore
| | - Alex J. Yuffa
- National Institute of Standards and Technology, Boulder, CO 80305 USA
| | - Derek Y. C. Chan
- School of Mathematics and Statistics, The University of Melbourne, Parkville 3010, VIC, Australia
- Department of Mathematics, Swinburne University of Technology, Hawthorn VIC 3121 Australia
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73
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Liu J, Zhang J. Nanointerface Chemistry: Lattice-Mismatch-Directed Synthesis and Application of Hybrid Nanocrystals. Chem Rev 2020; 120:2123-2170. [DOI: 10.1021/acs.chemrev.9b00443] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jia Liu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Jiatao Zhang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
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74
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Yin Z, Zhou Y, Cui P, Liao J, Rafailovich MH, Sun W. Fabrication of ordered bi-metallic array with superstructure of gold micro-rings via templated-self-assembly procedure and its SERS application. Chem Commun (Camb) 2020; 56:4808-4811. [DOI: 10.1039/d0cc00942c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Bi-metallic patterns with array of Pt discs decorated by Au rings were fabricated onto the substrate by a templated-self-assembly procedure in which multi-step self-assembly processes were involved.
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Affiliation(s)
- Zhangyu Yin
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
| | - Yuchen Zhou
- Department of Materials Science and Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Pengcheng Cui
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
| | - Jinhua Liao
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
| | - Miriam H. Rafailovich
- Department of Materials Science and Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Wei Sun
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
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75
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Akiyoshi K, Kameyama T, Yamamoto T, Kuwabata S, Tatsuma T, Torimoto T. Controlling the oxidation state of molybdenum oxide nanoparticles prepared by ionic liquid/metal sputtering to enhance plasmon-induced charge separation. RSC Adv 2020; 10:28516-28522. [PMID: 35520071 PMCID: PMC9055849 DOI: 10.1039/d0ra05165a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 07/14/2020] [Indexed: 12/31/2022] Open
Abstract
Nanoparticles composed of molybdenum oxide, MoOx, were successfully prepared by room-temperature ionic liquid (RTIL)/metal sputtering followed by heat treatment. Hydroxyl groups in RTIL molecules retarded the coalescence between MoOx NPs during heat treatment at 473 K in air, while the oxidation state of Mo species in MoOx nanoparticles (NPs) could be modified by changing the heat treatment time. An LSPR peak was observed at 840 nm in the near-IR region for MoOx NPs of 55 nm or larger in size that were annealed in a hydroxyl-functionalized RTIL. Photoexcitation of the LSPR peak of MoOx NPs induced electron transfer from NPs to ITO electrodes. MoOx NPs, prepared by sputtering Mo metal on a room-temperature ionic liquid (RTIL) followed by heating in air, produced anodic photocurrents with the excitation of their LSPR peak.![]()
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Affiliation(s)
| | - Tatsuya Kameyama
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | | | | | - Tetsu Tatsuma
- Institute of Industrial Science
- The University of Tokyo
- Tokyo 153-8505
- Japan
| | - Tsukasa Torimoto
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
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76
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Liu K, Sun Y, Li Q, Yang C, Azam M, Wang Z, Qu S, Wang Z. A wrinkled structure with broadband and omnidirectional light-trapping abilities for improving the performance of organic solar cells with low defect density. NANOSCALE 2019; 11:22467-22474. [PMID: 31746915 DOI: 10.1039/c9nr08477k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fabricating thin film solar cells on the light-trapping structures is an effective way to improve the absorption of the active layer. Here, we report a non-fullerene organic solar cell based on a PBDB-T:ITIC active layer, a wrinkled metal rear electrode, and a MoO3/Ag/ZnS front transparent electrode. Optical characterization shows that the wrinkled metal structure can remarkably increase the absorption of the active layer in a broadband range. The resulting device shows a power conversion efficiency of 8.2%, which increases by 4.6% compared to that of the flat counterpart. Apart from higher absorption, the improved performance can also be ascribed to the efficient charge transport and collection in the device due to the lower defect density, larger interfacial area, and smaller active layer thickness. A device with a power conversion efficiency of 10.19% based on the flat ITO/glass substrate is also achieved. Accordingly, a power conversion efficiency of about 10.66% is predicted under the condition where the wrinkled rear electrode and the ITO front electrode are employed. In addition, the power conversion efficiency of the wrinkled device could increase by about 50.48% compared to that of the flat device under an incident angle of 60 °C, illustrating that a better omnidirectional ability is achieved.
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Affiliation(s)
- Kong Liu
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.
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Said DA, Ali AM, Khayyat MM, Boustimi M, Loulou M, Seoudi R. A study of the influence of plasmonic resonance of gold nanoparticle doped PEDOT: PSS on the performance of organic solar cells based on CuPc/C6 0. Heliyon 2019; 5:e02675. [PMID: 31840116 PMCID: PMC6893062 DOI: 10.1016/j.heliyon.2019.e02675] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 08/18/2019] [Accepted: 10/14/2019] [Indexed: 12/14/2022] Open
Abstract
This work studied the role of gold nanoparticles (AuNPs) with different spherical sizes mixed with poly (3, 4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT: PSS) as a hole transfer layer to enhance the efficiency (ITO/PEDOT:PSS (AuNPs)/CuPc/C60/Al) organic photovoltaic cell (OPV). AuNPs were synthesized using the thermochemical method and the results of the transmission electron microscope (TEM) images showed that the gold nanoparticles mostly dominated by spherical shapes and sizes were calculated in the range (12–23 nm). Measurements of UV-VIS spectra for AuNPs have shown that the surface plasmon resonance shifted to a higher wavelength with decreasing the particle size. Surface morphology and absorption spectra of OPV cells were studied using atomic force microscope and UV-VIS spectrometer techniques. The efficiency of the OPV cell was calculated without and with AuNPs. Efficiency was increased from 0.78% to 1.02% due to the embedded of AuNPs with (12 nm) in PEDOT/PSS. The increase in the light absorption in CuPc is due to the good transparent conducting of PEDOT:PSS and the increase in the electric field around AuNPs embedded in PEDOT:PSS and inbuilt electric field at the interfacial between CuPc and C60 is due to the surface plasmon resonance of AuNPs. The increase in these two factors increase the exciton generation in CuPc, dissociation at the interfacial layer, and charge carrier transfer which increases the collection of electrons and holes at cathode and anode.
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Affiliation(s)
- D A Said
- Physics Department, Faculty of Women for Art, Sciences and Education, Ain Shams University, Cairo, Egypt
| | - A M Ali
- Department of Physics, College of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia.,Department of Physics, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - M M Khayyat
- King Abdulaziz City for Science and Technology, Riyadh 11442, Kingdom of Saudi Arabia
| | - M Boustimi
- Department of Physics, College of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - M Loulou
- Department of Physics, College of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - R Seoudi
- Department of Physics, College of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia.,Spectroscopy Department, Physics Division, NRC, Dokki, Cairo 12622, Egypt
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78
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Zhou X, Li Z, Deng X, Yan B, Wang Z, Chen X, Huang S. High performance perovskite solar cells using Cu 9S 5 supraparticles incorporated hole transport layers. NANOTECHNOLOGY 2019; 30:445401. [PMID: 31349240 DOI: 10.1088/1361-6528/ab3604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We disclose novel photovoltaic device physics and present details of device mechanisms by investigating perovskite solar cells (PSCs) incorporating Cu9S5@SiO2 supraparticles (SUPs) into Spiro-OMeTAD based hole transport layers (HTLs). High quality colloidal Cu9S5 nanocrystals (NCs) were prepared using a hot-injection approach. Multiple Cu9S5 NCs were further embedded in silica to construct a Cu9S5@SiO2 SUP. Cu9S5@SiO2 SUPs were blended into Spiro-OMeTAD based HTLs with different weight ratios. Theoretical and experimental results show that the very strong light scattering or reflecting properties of Cu9S5@SiO2 SUPs blended in the PSC device in a proper proportion distribute to increase the light energy trapped within the device, leading to significant enhancement of light absorption in the active layer. Additionally, the incorporated Cu9S5@SiO2 SUPs can also promote the electrical conductivity and hole-transport capacity of the HTL. Significantly larger conductivity and higher hole injection efficiency were demonstrated in the HTM with the optimal weight ratios of Cu9S5@SiO2 SUPs. As a result, efficient Cu9S5 SUPs based PSC devices were obtained with average power conversion efficiency (PCE) of 18.21% at an optimal weight ratio of Cu9S5 SUPs. Compared with PSC solar cells without Cu9S5@SiO2 SUPs (of which the average PCE is 14.38%), a remarkable enhancement over 26% in average PCE was achieved. This study provides an innovative approach to efficiently promote the performance of PSC devices by employing optically stable, low-cost and green p-type semiconductor SUPs.
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Affiliation(s)
- Xin Zhou
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Materials Science, East China Normal University, North Zhongshan Rd. 3663, Shanghai 200062, People's Republic of China
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79
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Rebello Sousa Dias M, Leite MS. Alloying: A Platform for Metallic Materials with On-Demand Optical Response. Acc Chem Res 2019; 52:2881-2891. [PMID: 31305980 DOI: 10.1021/acs.accounts.9b00153] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Metallic materials with engineered optical properties have the potential to enhance the performance of energy harvesting and storage devices operating at the macro- and nanoscale, such as solar cells, photocatalysts, water splitting, and hydrogen storage systems. For both thin films and subwavelength nanostructures, upon illumination, the coherent oscillation of charge carriers at the interface with a dielectric material gives rise to resonances named surface plasmon polariton (SPP) and localized surface plasmon resonance (LSPR), respectively. These resonances result in unique light absorption, scattering, and transmission responses over the electromagnetic spectrum, which, in turn, can be exploited to tailor the behavior of active metallic components in optoelectronic devices containing Ag, Au, Cu, Al, Mg, among other metals. The wavelength in which the resonances occur primarily depends on the metal itself (i.e., the dielectric function or permittivity), the dielectric medium surrounding the metals, and the size, geometry, and periodicity of the metallic nanostructures. Nevertheless, the aforementioned parameters allow a limited modulation of both SPP and LSPR over a narrow window of frequencies. To overcome this constraint, we have proposed and realized the alloying of metals via physical deposition methods as a paradigm to almost arbitrarily tuning their optical behavior in the UV-NIR, which leads to permittivity values currently not available. Our approach offers an additional knob, chemical composition, to engineer light-matter interactions in metallic materials. This Account highlights recent progress in using alloying as a pathway to control the optical behavior of metallic thin films and nanostructures for energy harvesting and storage applications, including (photo)catalysis, photovoltaics, superabsorbers, hydrogen storage, among other systems. We choose to primarily focus on the optical properties of the metallic mixtures and in their near- to far-field responses in the UV-NIR range of the spectrum as they represent key parameters for materials' selection for the devices above. By alloying, it is possible to obtain metallic materials with LSPR not available for pure metals, which can enable the further control of the electromagnetic spectrum. First, we discuss how the permittivity of binary mixtures of coinage metals (Au, Ag, and Cu) can be tailored based on the chemical composition of their pure counterparts. Second, we present how novel metallic materials can be designed through band structure engineering through density functional theory (DFT), a paradigm that could benefit from artificial intelligence methods. Concerning alloyed thin films, we discuss the promise of earth-abundant metals and provide an example of the superior performance of AlCu in superabsorbers. In the realm of nanostructures, we focus the discussion on physical deposition methods, where we provide a detailed analysis of how chemical composition can affect the far- and near-field responses of metallic building blocks. Finally, we provide a brief outlook of promising next steps in the field.
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Affiliation(s)
| | - Marina S. Leite
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, United States
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80
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Wang Q, Chu S, Yu L, Gao H, Peng W. Near-Field Enhancement and Polarization Selection of a Nano-System for He-Ne Laser Application. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:nano9101421. [PMID: 31590440 PMCID: PMC6836183 DOI: 10.3390/nano9101421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/11/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
In this paper, we focus on transmission behavior based on the single aperture with a scatter. Both the near-field enhancement and polarization selection can be achieved numerically with a proposed nano-system under He-Ne laser wavelength. The nano-system consists of an Ag antenna, a wafer layer, an Ag film with an aperture and a dielectric substrate. Numerical results show that the near-field enhancement is related to the FP-like resonance base on surface plasmon polaritons (SPPs) in the metal-isolator-metal (MIM) waveguide for transverse magnetic (TM) polarization. The near-field optical spot is confined at the aperture export with a maximal electric intensity 20 times the value of the incident field for an antenna length of 430 nm. The transmission cutoff phenomenon for transverse electric (TE) polarization is because the transmission is forbidden for smaller aperture width. High extinction ratios of 9.6×10-8 (or 70.2 dB) and 4.4×10-8 (or 73.6 dB) with antenna lengths of 130 nm and 430 nm are achieved numerically with the nano-system. The polarization selective property has a good angular tolerance for oblique angles smaller than 15°. The spectral response is also investigated. We further demonstrate that the nano-system is applicable for another incident wavelength of 500 nm. Our investigation may be beneficial for the detection of polar molecules or local nano polarized nanosource.
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Affiliation(s)
- Qiao Wang
- Department of Physics, Dalian University of Technology, Ganjingzi District, Dalian 116024, China.
| | - Shuwen Chu
- Department of Physics, Dalian University of Technology, Ganjingzi District, Dalian 116024, China.
| | - Li Yu
- Department of Physics, Dalian University of Technology, Ganjingzi District, Dalian 116024, China.
| | - Huixuan Gao
- Department of Physics, Dalian University of Technology, Ganjingzi District, Dalian 116024, China.
| | - Wei Peng
- Department of Physics, Dalian University of Technology, Ganjingzi District, Dalian 116024, China.
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81
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Ramasamy MS, Ryu KY, Lim JW, Bibi A, Kwon H, Lee JE, Kim DH, Kim K. Solution-Processed PEDOT:PSS/MoS 2 Nanocomposites as Efficient Hole-Transporting Layers for Organic Solar Cells. NANOMATERIALS 2019; 9:nano9091328. [PMID: 31527441 PMCID: PMC6781061 DOI: 10.3390/nano9091328] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 09/07/2019] [Accepted: 09/11/2019] [Indexed: 11/16/2022]
Abstract
An efficient hole-transporting layer (HTL) based on functionalized two-dimensional (2D) MoS2-poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composites has been developed for use in organic solar cells (OSCs). Few-layer, oleylamine-functionalized MoS2 (FMoS2) nanosheets were prepared via a simple and cost-effective solution-phase exfoliation method; then, they were blended into PEDOT:PSS, a conducting conjugated polymer, and the resulting hybrid film (PEDOT:PSS/FMoS2) was tested as an HTL for poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) OSCs. The devices using this hybrid film HTL showed power conversion efficiencies up to 3.74%, which is 15.08% higher than that of the reference ones having PEDOT:PSS as HTL. Atomic force microscopy and contact angle measurements confirmed the compatibility of the PEDOT:PSS/FMoS2 surface for active layer deposition on it. The electrical impedance spectroscopy analysis revealed that their use minimized the charge-transfer resistance of the OSCs, consequently improving their performance compared with the reference cells. Thus, the proposed fabrication of such HTLs incorporating 2D nanomaterials could be further expanded as a universal protocol for various high-performance optoelectronic devices.
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Affiliation(s)
| | - Ka Yeon Ryu
- Deprtment of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Ju Won Lim
- Deprtment of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Asia Bibi
- Deprtment of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Hannah Kwon
- Deprtment of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Ji-Eun Lee
- Deprtment of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Dong Ha Kim
- Deprtment of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea.
| | - Kyungkon Kim
- Deprtment of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea.
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82
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Mode Splitting Induced by Mesoscopic Electron Dynamics in Strongly Coupled Metal Nanoparticles on Dielectric Substrates. NANOMATERIALS 2019; 9:nano9091206. [PMID: 31461966 PMCID: PMC6780343 DOI: 10.3390/nano9091206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/21/2019] [Accepted: 08/24/2019] [Indexed: 11/24/2022]
Abstract
We study strong optical coupling of metal nanoparticle arrays with dielectric substrates. Based on the Fermi Golden Rule, the particle–substrate coupling is derived in terms of the photon absorption probability assuming a local dipole field. An increase in photocurrent gain is achieved through the optical coupling. In addition, we describe light-induced, mesoscopic electron dynamics via the nonlocal hydrodynamic theory of charges. At small nanoparticle size (<20 nm), the impact of this type of spatial dispersion becomes sizable. Both absorption and scattering cross sections of the nanoparticle are significantly increased through the contribution of additional nonlocal modes. We observe a splitting of local optical modes spanning several tenths of nanometers. This is a signature of semi-classical, strong optical coupling via the dynamic Stark effect, known as Autler–Townes splitting. The photocurrent generated in this description is increased by up to 2%, which agrees better with recent experiments than compared to identical classical setups with up to 6%. Both, the expressions derived for the particle–substrate coupling and the additional hydrodynamic equation for electrons are integrated into COMSOL for our simulations.
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83
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Zhang B, Zhao Y, Liang W. Collaborative effect of plasmon-induced resonance energy and electron transfer on the interfacial electron injection dynamics of dye-sensitized solar cell. J Chem Phys 2019; 151:044702. [PMID: 31370537 DOI: 10.1063/1.5111601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
It has been widely recognized that plasmonic metal nanoparticles (MNPs) can enhance the power convention efficiency (PCE) of dye-sensitized solar cells (DSSCs). This enhancement is ascribed to the combined effects of plasmon decay, scattering, near-field enhancement, and exciting charge carriers in semiconductors through plasmon-induced resonance energy transfer (PIRET) and hot electron injection (HEI). PIRET and HEI processes appeared between MNPs, and semiconductors have been intensively investigated; however, it is not clear how the collaborative effect of PIRET and photon-induced direct and indirect electron transfer (PICT) occurred between plasmonic metals and dyes, and the interference of different charge separation channels (CSCs) starting from PIRET and PICT affects the PCE of DSSCs. This work aims to address these issues. We apply a model Hamiltonian method, which obviously includes both PIRET and PICT processes from Au MNP to dye molecules and incorporates the dye's electron-phonon interaction, to investigate the carrier dynamics. It is found that PIRET deforms the wavepacket dynamics of the molecular excited state and results in ten-fold enhancement of dye absorption. MNPs augment light absorption and increase the electron density in empty molecular orbitals of the dye molecule. Consequently, this enhances the interfacial charge separation. Furthermore, we observed the interference behavior of two CSCs and gave a full-scale insight into the correlation between the constructive/destructive interference and the electronic-state properties as well as carrier-phonon interactions. This work provides a theoretical guidance to optimize DSSCs.
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Affiliation(s)
- Bin Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - Yi Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - WanZhen Liang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
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84
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Pellacani P, Fornasari L, Rodriguez C, Torres-Costa V, Marabelli F, Manso Silvàn M. Porous Silicon Bragg Reflector and 2D Gold-Polymer Nanograting: A Route Towards a Hybrid Optoplasmonic Platform. NANOMATERIALS 2019; 9:nano9071017. [PMID: 31315233 PMCID: PMC6669865 DOI: 10.3390/nano9071017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/09/2019] [Accepted: 07/13/2019] [Indexed: 12/15/2022]
Abstract
Photonic and plasmonic systems have been intensively studied as an effective means to modify and enhance the electromagnetic field. In recent years hybrid plasmonic–photonic systems have been investigated as a promising solution for enhancing light-matter interaction. In the present work we present a hybrid structure obtained by growing a plasmonic 2D nanograting on top of a porous silicon distributed Bragg reflector. Particular attention has been devoted to the morphological characterization of these systems. Electron microscopy images allowed us to determine the geometrical parameters of the structure. The matching of the optical response of both components has been studied. Results indicate an interaction between the plasmonic and the photonic parts of the system, which results in a localization of the electric field profile.
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Affiliation(s)
- Paola Pellacani
- Plasmore S.r.l., Via Riviera 12b, 27100 Pavia, Italy
- Department of Applied Physics and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Campus de Cantoblanco. C/Francisco Tomás y Valiente, 7, 28049 Madrid, Spain
| | | | - Chloé Rodriguez
- Department of Applied Physics and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Campus de Cantoblanco. C/Francisco Tomás y Valiente, 7, 28049 Madrid, Spain
| | - Vicente Torres-Costa
- Department of Applied Physics and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Campus de Cantoblanco. C/Francisco Tomás y Valiente, 7, 28049 Madrid, Spain
- Centre for Micro Analysis of Materials, Autonomous University of Madrid, 28049 Madrid, Spain
| | - Franco Marabelli
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Miguel Manso Silvàn
- Department of Applied Physics and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Campus de Cantoblanco. C/Francisco Tomás y Valiente, 7, 28049 Madrid, Spain
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85
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Auguié B, Darby BL, Le Ru EC. Electromagnetic interactions of dye molecules surrounding a nanosphere. NANOSCALE 2019; 11:12177-12187. [PMID: 31198919 DOI: 10.1039/c9nr01304k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Enhanced interaction between light and molecules adsorbed on metallic nanoparticles is a cornerstone of plasmonics and surface-enhanced spectroscopies. Recent experimental access to the electronic absorption spectrum of dye molecules on silver colloids at low molecular coverage has revealed subtle changes in the spectral shape that may be attributed to a combination of factors, from a chemical modification of the molecule in contact with a metal surface to electromagnetic dye-dye and dye-metal interactions. Here we develop an original model to rigorously address the electromagnetic effects. The dye molecules are described as coupled anisotropic polarisable dipoles and their interaction with the core metal particle is described using a generalised Mie theory. The theory is readily amenable to numerical implementation and yields far-field optical cross-sections that can be compared to experimental results. We apply this model to specific adsorption geometries of practical interest to highlight the effect of molecular orientation on predicted spectral shifts and enhancement factors, as a function of surface coverage. These are compared to experimental results and reproduce the measured spectral changes as a function of concentration. These results have direct implications for the interpretation of surface selection rules and enhancement factors in surface-enhanced spectroscopies, and of orientation and coverage effects in molecular/plasmonic resonance coupling experiments.
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Affiliation(s)
- Baptiste Auguié
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Brendan L Darby
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Eric C Le Ru
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
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86
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Macia N, Kabanov V, Côté-Cyr M, Heyne B. Roles of Near and Far Fields in Plasmon-Enhanced Singlet Oxygen Production. J Phys Chem Lett 2019; 10:3654-3660. [PMID: 31194564 DOI: 10.1021/acs.jpclett.9b01165] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In plasmon-enhanced singlet oxygen (1O2) production, irradiation of a hybrid photosensitizer-metal nanoparticle leads to a significant alteration of the photosensitizer's 1O2 yield. The quest for a more rational design of these nanomaterials calls for a better understanding of the enhancement mechanism that, to this day, remains largely unexplored. Herein, we introduce a new methodology to distinguish the near- and far-field contributions to the plasmon-enhanced 1O2 production using a tunable model nanoplatform, Rose Bengal-decorated silica-coated metal nanoparticles. By correlating 1O2 production to the experimental and simulated optical properties of our nanoparticles, we effectively discriminate how the near- and far-field effects contribute to the plasmonic interactions. We show that these effects work in synergy; i.e., for nanoparticles with a similar local field, the production of 1O2 correlates with maximized scattering yields. Our results expound the critical plasmonic aspects in terms of near and far fields for the design of an efficient hybrid plasmonic nanoparticle photosensitizer.
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Affiliation(s)
- Nicolas Macia
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Vladimir Kabanov
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Mélanie Côté-Cyr
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Belinda Heyne
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
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87
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Yang M, Moroz P, Jin Z, Budkina DS, Sundrani N, Porotnikov D, Cassidy J, Sugiyama Y, Tarnovsky AN, Mattoussi H, Zamkov M. Delayed Photoluminescence in Metal-Conjugated Fluorophores. J Am Chem Soc 2019; 141:11286-11297. [DOI: 10.1021/jacs.9b04697] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Zhicheng Jin
- Department of Chemistry, Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
| | | | | | | | | | - Yuya Sugiyama
- Asahi-Kasei Corporation, Healthcare R&D Center, 2-1 Samejima, Fuji City, Shizuoka 416-8501 Japan
| | | | - Hedi Mattoussi
- Department of Chemistry, Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
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88
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Yao K, Zhong H, Liu Z, Xiong M, Leng S, Zhang J, Xu YX, Wang W, Zhou L, Huang H, Jen AKY. Plasmonic Metal Nanoparticles with Core-Bishell Structure for High-Performance Organic and Perovskite Solar Cells. ACS NANO 2019; 13:5397-5409. [PMID: 31017763 DOI: 10.1021/acsnano.9b00135] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To maximize light coupling into the active layer, plasmonic nanostructures have been incorporated into both active layers of organic solar cells (OSCs) and perovskite solar cells (PSCs) with the aim of increasing light absorption, but reports have shown controversial results in electrical characteristics. In this work, we introduce a core-bishell concept to build plasmonic nanoparticles (NPs) with metal-inorganic semiconductor-organic semiconductor nanostructure. Specifically, Ag NPs were decorated with a titania/benzoic-acid-fullerene bishell (Ag@TiO2@Pa), which enables the NPs to be compatible with fullerene acceptors or a perovskite absorber. Moreover, coating the Ag@TiO2 NP with a fullerene shell can activate efficient plasmon-exciton coupling and eliminate the charge accumulation, thus facilitating exciton dissociation and reducing the monomolecular recombination. The improved light absorption and enhanced carrier extraction of devices with Ag@TiO2@Pa nanoparticles are responsible for the improved short-circuit current and fill factor, respectively. On the basis of the synergistic effects (optical and electrical), a series of plasmonic OSCs exhibited enhancement of 12.3-20.7% with a maximum power conversion efficiency of 13.0%, while the performance of plasmonic PSCs also showed an enhancement by 10.2% from 18.4% to 20.2%. This core-bishell design concept of plasmonic nanostructures demonstrates a general approach to improving the photovoltaic performance with both optical and electrical contributions.
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Affiliation(s)
- Kai Yao
- Institute of Photovoltaics/Department of Materials Science and Engineering , Nanchang University , Nanchang 330031 , China
- Department of Applied Physics , The Hong Kong Polytechnic University , Hung Hom, Kowloon , Hong Kong , China
| | - Hongjie Zhong
- Institute of Photovoltaics/Department of Materials Science and Engineering , Nanchang University , Nanchang 330031 , China
| | - Zhiliang Liu
- Institute of Photovoltaics/Department of Materials Science and Engineering , Nanchang University , Nanchang 330031 , China
| | - Min Xiong
- Institute of Photovoltaics/Department of Materials Science and Engineering , Nanchang University , Nanchang 330031 , China
| | - Shifeng Leng
- Institute of Photovoltaics/Department of Materials Science and Engineering , Nanchang University , Nanchang 330031 , China
| | - Jie Zhang
- Department of Materials Science & Engineering , City University of Hong Kong , Kowloon , Hong Kong , China
| | - Yun-Xiang Xu
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Wenyan Wang
- Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education, College of Physics and Optoelectronics , Taiyuan University of Technology , Taiyuan 030024 , China
| | - Lang Zhou
- Institute of Photovoltaics/Department of Materials Science and Engineering , Nanchang University , Nanchang 330031 , China
| | - Haitao Huang
- Department of Applied Physics , The Hong Kong Polytechnic University , Hung Hom, Kowloon , Hong Kong , China
| | - Alex K-Y Jen
- Department of Materials Science & Engineering , City University of Hong Kong , Kowloon , Hong Kong , China
- Department of Materials Science and Engineering , University of Washington , Seattle , Washington 98195 , United States
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89
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Efficient Light Management in a Monolithic Tandem Perovskite/Silicon Solar Cell by Using a Hybrid Metasurface. NANOMATERIALS 2019; 9:nano9050791. [PMID: 31126065 PMCID: PMC6566752 DOI: 10.3390/nano9050791] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/20/2019] [Accepted: 05/22/2019] [Indexed: 11/30/2022]
Abstract
Solar energy is now dealing with the challenge of overcoming the Shockley–Queisser limit of single bandgap solar cells. Multilayer solar cells are a promising solution as the so-called third generation of solar cells. The combination of materials with different bandgap energies in multijunction cells enables power conversion efficiencies up to 30% at reasonable costs. However, interfaces between different layers are critical due to optical losses. In this work, we propose a hybrid metasurface in a monolithic perovskite-silicon solar cell. The design takes advantage of light management to optimize the absorption in the perovskite, as well as an efficient light guiding towards the silicon subcell. Furthermore, we have also included the effect of a textured back contact. The optimum proposal provides an enhancement of the matched short-circuit current density of a 20.5% respect to the used planar reference.
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90
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Wang Y, Li H, Zhu W, He F, Huang Y, Chong R, Kou D, Zhang W, Meng X, Fang X. Plasmon-mediated nonradiative energy transfer from a conjugated polymer to a plane of graphene-nanodot-supported silver nanoparticles: an insight into characteristic distance. NANOSCALE 2019; 11:6737-6746. [PMID: 30907396 DOI: 10.1039/c8nr09576k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid nanostructures comprising conjugated polymers (CPs) and plasmonic metals show excellent performance in light harvesting. However, the energy transfer mechanism of the CP film to nearby metal nanoparticles, especially knowledge of the characteristic distance, is still unclear. Here, quenching of the emission of a CP film in proximity to a monolayer of graphene-nanodot-supported silver nanoparticles (GND-Ag NPs) is investigated. Uniform Ag NPs with D = 3.2 nm were grown on GNDs in situ under mild light irradiation, and a series of bilayer structures of GND-Ag NPs/CPs were constructed by spin-coating blue, green and red light-emitting poly(9,9-dioctylfluorene) (PFO), poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) and poly[2-methoxy-5-(2'-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV),respectively, on top of the GND-Ag NP plane. The spacer distance was controlled by the layers of assembled polyelectrolytes. Both steady and transient photoluminescence (PL) spectra showed emission quenching of the bilayer structures, providing the maximum efficiency of 99% for the F8BT films. The surface density of GND-Ag NPs and the spacer distance-dependent PL quenching data were analyzed within the plasmonic resonant energy transfer model, and the extracted characteristic distances are 6 nm, 3 nm and 10 nm for the PFO, F8BT and MEH-PPV systems, respectively. Current-sensing atomic force microscopy shows that the GND-Ag NPs/F8BT film exhibits enhanced electrical conductivity. These results are believed to be important for the development of plasmonic enhanced polymer photovoltaics and photocatalysis.
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Affiliation(s)
- Yunjing Wang
- Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China.
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91
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Wang SS, Hu WC, Liu FF, Xu QY, Wang C. Insights into direct plasmon-activated eletrocatalysis on gold nanostar via efficient photothermal effect and reduced activation energy. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.172] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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92
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Huang X, Li H, Zhang C, Tan S, Chen Z, Chen L, Lu Z, Wang X, Xiao M. Efficient plasmon-hot electron conversion in Ag-CsPbBr 3 hybrid nanocrystals. Nat Commun 2019; 10:1163. [PMID: 30858372 PMCID: PMC6411736 DOI: 10.1038/s41467-019-09112-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 02/21/2019] [Indexed: 11/30/2022] Open
Abstract
Hybrid metal/semiconductor nano-heterostructures with strong exciton-plasmon coupling have been proposed for applications in hot carrier optoelectronic devices. However, the performance of devices based on this concept has been limited by the poor efficiency of plasmon-hot electron conversion at the metal/semiconductor interface. Here, we report that the efficiency of interfacial hot excitation transfer can be substantially improved in hybrid metal semiconductor nano-heterostructures consisting of perovskite semiconductors. In Ag–CsPbBr3 nanocrystals, both the plasmon-induced hot electron and the resonant energy transfer processes can occur on a time scale of less than 100 fs with quantum efficiencies of 50 ± 18% and 15 ± 5%, respectively. The markedly high efficiency of hot electron transfer observed here can be ascribed to the increased metal/semiconductor coupling compared with those in conventional systems. These findings suggest that hybrid architectures of metal and perovskite semiconductors may be excellent candidates to achieve highly efficient plasmon-induced hot carrier devices. Proposed devices exploiting the strong exciton-plasmon coupling are limited by the low efficiency of hot carrier generation. Here, Huang et al. study the efficiencies of different plasmon-hot electron conversion processes in metal/perovskite semiconductor nanocrystals to address this problem.
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Affiliation(s)
- Xinyu Huang
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China
| | - Hongbo Li
- College of Engineering and Applied Sciences, Nanjing University, 210093, Nanjing, China.,Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, 211816, Nanjing, China
| | - Chunfeng Zhang
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China. .,Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, 230026, Hefei, Anhui, China.
| | - Shijing Tan
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Zhangzhang Chen
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China
| | - Lan Chen
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China
| | - Zhenda Lu
- College of Engineering and Applied Sciences, Nanjing University, 210093, Nanjing, China.
| | - Xiaoyong Wang
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China
| | - Min Xiao
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China. .,Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, 230026, Hefei, Anhui, China. .,Department of Physics, University of Arkansas, Fayetteville, AR, 72701, USA.
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93
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Agarwal K, Dai C, Joung D, Cho JH. Nano-Architecture Driven Plasmonic Field Enhancement in 3D Graphene Structures. ACS NANO 2019; 13:1050-1059. [PMID: 30588797 DOI: 10.1021/acsnano.8b08145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The limited spatial coverage of the plasmon enhanced near-field in 2D graphene ribbons presents a major hurdle in practical applications. In this study, diverse self-assembled 3D graphene architectures are explored that induce hybridized plasmon modes by simultaneous in-plane and out-of-plane coupling to overcome the limited coverage in 2D ribbons. While 2D graphene can only demonstrate in-plane, bidirectional coupling through the edges, 3D architectures benefit from fully symmetric 360° coupling at the apex of pyramidal graphene, orthogonal four-directional coupling in cubic graphene, and uniform cross-sectional radial coupling in tubular graphene. The 3D coupled vertices, edges, surfaces, and volume induce corresponding enhancement modes that are highly dependent on the shape and dimensions comprising the 3D geometries. The hybridized modes introduced through the 3D coupling amplify the limited plasmon response in 2D ribbons to deliver nondiffusion limited sensors, high efficiency fuel cells, and extreme propagation length optical interconnects.
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Affiliation(s)
- Kriti Agarwal
- Department of Electrical and Computer Engineering , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Chunhui Dai
- Department of Electrical and Computer Engineering , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Daeha Joung
- Department of Electrical and Computer Engineering , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Jeong-Hyun Cho
- Department of Electrical and Computer Engineering , University of Minnesota , Minneapolis , Minnesota 55455 , United States
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94
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Kim J, Ampadu EK, Choi WJ, Oh E. Photocurrent spectra from PbS photovoltaic infrared detectors using silver nanowires as plasmonic nano antenna electrodes. NANOTECHNOLOGY 2019; 30:075201. [PMID: 30523862 DOI: 10.1088/1361-6528/aaf194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We discussed structural and electrical properties of PbS films deposited by chemical bath deposition. The crystallite size of our films measured by transmission electron microscope was as large as 0.2 μm in a lateral direction and 1 μm in a vertical direction, and we obtained a high mobility value of 60 cm2 V-1 s-1 at room temperature. We also demonstrated PbS photovoltaic infrared detectors using silver nanowires as transparent electrodes, whose spectral response was measured by Fourier transform infrared spectrometer. The cut-off wavelength was ∼3 μm at room temperature and ∼4 μm at 10 K. At 100 K, a pronounced photocurrent peak was observed at λ = 3.7 μm. Using finite difference time domain simulations, we demonstrated that silver nanowires worked as nano antennas for generating surface plasmons, resulting in the enhancement of photocurrent. The pronounced photocurrent peak wavelength corresponds to the wavelength where the silver nanowires were located near the constructive interference.
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Affiliation(s)
- Jungdong Kim
- Department of Physics, Chungnam National University, Daejeon, Republic of Korea
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95
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Mokkath JH. Optical excitations of boron and phosphorous doped silicon nanoparticles: A computational study. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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96
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Araujo TP, Quiroz J, Barbosa EC, Camargo PH. Understanding plasmonic catalysis with controlled nanomaterials based on catalytic and plasmonic metals. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.01.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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97
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Moroz P, Royo Romero L, Zamkov M. Colloidal semiconductor nanocrystals in energy transfer reactions. Chem Commun (Camb) 2019; 55:3033-3048. [DOI: 10.1039/c9cc00162j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Excitonic energy transfer is a versatile mechanism by which colloidal semiconductor nanocrystals can interact with a variety of nanoscale species. This feature article will discuss the latest research on the key scenarios under which semiconductor nanocrystals can engage in energy transfer with other nanoparticles, organic fluorophores, and plasmonic nanostructures, highlighting potential technological benefits to be gained from such processes.
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Affiliation(s)
- Pavel Moroz
- Department of Physics and Astronomy
- Bowling Green State University
- Bowling Green
- USA
- The Center for Photochemical Sciences
| | - Luis Royo Romero
- Department of Physics and Astronomy
- Bowling Green State University
- Bowling Green
- USA
| | - Mikhail Zamkov
- Department of Physics and Astronomy
- Bowling Green State University
- Bowling Green
- USA
- The Center for Photochemical Sciences
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98
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He Z, Liu M, Liu L, Tong G, Wu W, Wang X. Distinct plasmon resonance enhanced microwave absorption of strawberry-like Co/C/Fe/C core–shell hierarchical flowers via engineering the diameter and interparticle spacing of Fe/C nanoparticles. RSC Adv 2019; 9:22644-22655. [PMID: 35519459 PMCID: PMC9067142 DOI: 10.1039/c9ra04988f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 07/18/2019] [Indexed: 01/17/2023] Open
Abstract
Strawberry-like Co/C/Fe/C core–shell hierarchical flowers (CSHFs) consisting of separated Fe/C nanoparticles (NPs) anchoring on a Co HF surface were prepared by decomposing Fe(CO)5 in the presence of Co HFs. Changing the decomposition temperature (Td) and Fe(CO)5 volume (δ) could also facilely modulate the phase structure, surface morphology and composition of the products. The low Td and small δ helped form Co/C/Fe/C CSHFs with a strawberry-like plasmon surface. The diameter and interparticle spacing-dependent electromagnetic properties were investigated at 2–18 GHz. The interparticle-spacing-to-diameter ratio determines the plasmon resonance and coupling. The permittivity and permeability enhanced by strong plasmon resonance were exhibited by Co/C/Fe/C CSHFs formed at δ = 3–4 mL with the interparticle-spacing-to-diameter ratio of 1.36–0.76. The collective oscillation of the conduction band electrons and near field on the Co/C and Fe/C surfaces generated a surface plasmon resonance and coupling, which were responsible for significantly enhanced permittivity and permeability with negative values. In view of the synergistic effect of the enhanced permittivity and permeability, dual dielectric relaxations, dual magnetic resonances, high attenuation and good impedance matching, Co/C/Fe/C CSHFs with particle size of 110 ± 20–380 ± 100 nm and interparticle spacing of 150 ± 50 nm were excellent absorbers that feature strong absorption, broad bandwidth and light weight. An optimal reflection loss (RL) of −45.06 was found at 17.92 GHz for an absorber thickness of 1.6 mm, and the frequency range (RL ≤ −20 dB, 99% absorption) was over 2–18 GHz. Our findings demonstrated that optimally designed plasmonic heterostructures must be fabricated to improve microwave absorption performances for future applications. Plasmon resonance enhanced permittivity, permeability, and microwave absorption were found in Fe/C nanoparticles anchoring on Co/C hierarchical flowers synthesized through a carefully devised kinetically tuned procedure.![]()
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Affiliation(s)
- Zidong He
- College of Chemistry and Life Sciences
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004
- People's Republic of China
| | - Minmin Liu
- College of Chemistry and Life Sciences
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004
- People's Republic of China
| | - Lin Liu
- College of Chemistry and Life Sciences
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004
- People's Republic of China
| | - Guoxiu Tong
- College of Chemistry and Life Sciences
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004
- People's Republic of China
| | - Wenhua Wu
- College of Chemistry and Life Sciences
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004
- People's Republic of China
| | - Xiaojuan Wang
- College of Chemistry and Life Sciences
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004
- People's Republic of China
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99
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Wallace GQ, Lagugné-Labarthet F. Advancements in fractal plasmonics: structures, optical properties, and applications. Analyst 2019; 144:13-30. [DOI: 10.1039/c8an01667d] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Fractal nanostructures exhibit optical properties that span the visible to far-infrared and are emerging as exciting structures for plasmon-mediated applications.
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Affiliation(s)
- Gregory Q. Wallace
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research
- University of Western Ontario
- London
- Canada
| | - François Lagugné-Labarthet
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research
- University of Western Ontario
- London
- Canada
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100
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Marques Mota F, Kim DH. From CO2methanation to ambitious long-chain hydrocarbons: alternative fuels paving the path to sustainability. Chem Soc Rev 2019; 48:205-259. [DOI: 10.1039/c8cs00527c] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Comprehensive insight into the thermochemical, photochemical and electrochemical reduction of CO2to methane and long-chain hydrocarbons as alternative fuels.
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Affiliation(s)
- Filipe Marques Mota
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
| | - Dong Ha Kim
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
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